CN107298969A - A kind of oil base drilling fluid fluid loss additive and preparation method thereof - Google Patents
A kind of oil base drilling fluid fluid loss additive and preparation method thereof Download PDFInfo
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- CN107298969A CN107298969A CN201610231331.5A CN201610231331A CN107298969A CN 107298969 A CN107298969 A CN 107298969A CN 201610231331 A CN201610231331 A CN 201610231331A CN 107298969 A CN107298969 A CN 107298969A
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- base drilling
- loss additive
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- drilling fluid
- fluid loss
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/02—Well-drilling compositions
- C09K8/32—Non-aqueous well-drilling compositions, e.g. oil-based
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- Oil, Petroleum & Natural Gas (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
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- Organic Chemistry (AREA)
- Lubricants (AREA)
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Abstract
The present invention relates to a kind of oil base drilling fluid fluid loss additive and preparation method thereof, preparation method is：Under nitrogen protection, NaOH solution, organic solvent, purified cotton are sequentially added into reactor, alkalize 1h at 20 25 DEG C, adds chloromethanes, epoxide, silanol, be warming up to after 50 80 DEG C of 3 5h of reaction, discharging obtains fluid loss additive of oil-base drilling fluid.The oil base fluid loss additive that the present invention is provided can be suitable for diesel oil, white oil and synthetic base drilling fluid system, and product is environmentally friendly, and filtrate reducing effect is significantly and preparation method and required appointed condition are simple, it is easy to implement.
Description
Technical field
The present invention relates to oil base drilling fluid prepared by a kind of oil base drilling fluid fluid loss additive and preparation method thereof, the present invention
It is applied to oil drilling field of engineering technology with fluid loss additive.
Background technology
In recent years, being continuously increased with domestic and international energy demand, petroleum exploration and development is gradually to deep and bad ground
Creep into, the quantity of the Holes of Complicated Wells such as drilling deep wells, ultradeep well, high angle hole, multilateral well, horizontal well is more and more, in addition, to non-
The exploitation of conventional gas and oil resource, the demand to oil base drilling fluid gradually increases.Fluid loss additive is used as one in additive for drilling fluid
Essential composition is planted, main function is drilling fluid is formed thin and compact mud cake on the borehole wall, so as to play filtrate reducing
And the effect such as improvement of mud cake, it is to safeguard stabilizing mud properties, improves drilling fluid rheology, reduces harmful liquid to ground
Metafiltration is lost, and stabilizing borehole, the important chemical treatments for ensureing hole diameter rule and oil-gas Layer.It for safe and efficient drilling well,
Prevent drilling failure from having important effect.The domestic development to oil base drilling fluid fluid loss additive is also fewer, main
If pitch class and organic amine are modified humic acids fluid loss additive, wherein asphalt product have pollution environment, consumption big and
The shortcoming of drilling speed is influenceed, at present in conventional oil base drilling fluid formula, it has been limited and used；Organic amine is modified humic acids drop
Fluid loss agents have disperses bad defect in oil base drilling fluid, and especially in the base oil of low toxic and environment-friendly type, dispersiveness is more
Difference, filtrate reducing effect also certain gap compared with asphalt product.
The content of the invention
In view of the above-mentioned deficiencies in the prior art, it is an object of the present invention to provide a kind of without environmental pollution, in oil base drilling fluid
In have dispersive property it is good, fluid loss additive of oil-base drilling fluid with excellent filtrate reducing effect and preparation method thereof.
What the purpose of the present invention was achieved through the following technical solutions：A kind of oil base drilling fluid fluid loss additive, its feature exists
In counting by weight, include following component：
Purified cotton：60 parts, organic solvent：600 parts；NaOH solution：120 parts；Chloromethanes：30-90 parts；Epoxide：30-
90 parts；Silanol：30-100 parts.
Described purified cotton is made up of carbon, hydrogen, 3 kinds of elements of oxygen, its mass ratio constituted:Carbon 44.4%%, hydrogen 6.17%,
Oxygen 49.39%, its chemical composition is cellulose, lignin and hemicellulose.
The preparation method of described a kind of oil base drilling fluid fluid loss additive, it is characterised in that comprise the steps of：In nitrogen
Under gas shielded, NaOH solution, organic solvent, purified cotton are sequentially added into reactor, alkalize 1h at 20-25 DEG C, add chlorine
Methane, epoxide, silanol, are warming up to after 50-80 DEG C of reaction 3-5h, discharging obtains fluid loss additive of oil-base drilling fluid.
A kind of preparation method of described oil base drilling fluid fluid loss additive, it is characterised in that described NaOH solution it is dense
Spend and be by mass percentage：45%-50%.
The preparation method of described a kind of oil base drilling fluid fluid loss additive, it is characterised in that described organic solvent is different
One or several kinds of mixtures in propyl alcohol, toluene, ethanol, acetone.
The preparation method of described a kind of oil base drilling fluid fluid loss additive, it is characterised in that described contains epoxide
For：One or more of mixing in epoxy butane, epoxypentane, oxepane.
The preparation method of described a kind of oil base drilling fluid fluid loss additive, it is characterised in that described silanol is：Front three
One or more of mixing in base silanol, triethyl silanol, tripropyl silanol.
The present invention has advantages below：
The oil base fluid loss additive raw material of the present invention is easy to get, and preparation technology is simple；Fluid loss additive is cellulose derivative, environment friend
It is good；The fluid loss additive easily disperses in oil base drilling fluid, good with other additive for drilling fluid compatibilities.
Embodiment
In order to be better understood from the present invention, the content of invention is further elucidated with reference to embodiment, but the present invention's is interior
Appearance is not limited only to the following examples.
Embodiment 1
Under nitrogen protection, 120 parts of concentration are sequentially added into reactor for 45%NaOH solution, 600 parts of isopropanols, 60 parts of essences
Cotton processed is sufficiently stirred for, and alkalize 1h at 20 DEG C, adds 30 parts of chloromethanes, 30 parts of epoxy butanes, 30 parts of trimethyl silanols, is warming up to
After 70 DEG C of reaction 3h, discharging obtains fluid loss additive of oil-base drilling fluid.
Embodiment 2
Under nitrogen protection, 120 parts of concentration are sequentially added into reactor for 46%NaOH solution, 600 parts of toluene, 60 parts refine
Cotton is sufficiently stirred for, and alkalize 1h at 25 DEG C, adds 40 parts of chloromethanes, 60 parts of epoxypentanes, 50 parts of trimethyl silanols, is warming up to 50
DEG C reaction 3h after, discharging obtain fluid loss additive of oil-base drilling fluid.
Embodiment 3
Under nitrogen protection, 120 parts of concentration are sequentially added into reactor for 50%NaOH solution, 600 parts of acetone, 60 parts refine
Cotton is sufficiently stirred for, and alkalize 1h at 25 DEG C, adds 60 parts of chloromethanes, 70 parts of epoxypentanes, 80 parts of triethyl silanols, is warming up to 80
DEG C reaction 4h after, discharging obtain fluid loss additive of oil-base drilling fluid.
Embodiment 4
Under nitrogen protection, 120 parts of concentration are sequentially added into reactor for 50%NaOH solution, 600 parts of ethanol, 60 parts refine
Cotton is sufficiently stirred for, and alkalize 1h at 25 DEG C, adds 90 parts of chloromethanes, 90 parts of epoxy butanes, 100 parts of tripropyl silanols, is warming up to
After 70 DEG C of reaction 4h, discharging obtains fluid loss additive of oil-base drilling fluid.
Embodiment 5
Under nitrogen protection, 120 parts of concentration are sequentially added into reactor for 45%NaOH solution, 600 parts of isopropanols, 60 parts of essences
Cotton processed is sufficiently stirred for, and alkalize 1h at 20 DEG C, adds 80 parts of chloromethanes, 90 parts of oxepanes, 80 parts of triethyl silanols, is warming up to
After 80 DEG C of reaction 3h, discharging obtains fluid loss additive of oil-base drilling fluid.
Embodiment 6
Under nitrogen protection, 120 parts of concentration are sequentially added into reactor for 47%NaOH solution, 600 parts of acetone, 60 parts refine
Cotton is sufficiently stirred for, and alkalize 1h at 20 DEG C, adds 50 parts of chloromethanes, 80 parts of oxepanes, 60 parts of trimethyl silanols, is warming up to 80
DEG C reaction 5h after, discharging obtain fluid loss additive of oil-base drilling fluid.
Embodiment 7
Under nitrogen protection, 120 parts of concentration are sequentially added into reactor for 48%NaOH solution, 600 parts of toluene, 60 parts refine
Cotton is sufficiently stirred for, and alkalize 1h at 25 DEG C, adds 30 parts of chloromethanes, 30 parts of oxepanes, 30 parts of triethyl silanols, is warming up to 50
DEG C reaction 4h after, discharging obtain fluid loss additive of oil-base drilling fluid.
Embodiment 8
Under nitrogen protection, 120 parts of concentration are sequentially added into reactor for 50%NaOH solution, 600 parts of ethanol, 60 parts refine
Cotton is sufficiently stirred for, and alkalize 1h at 25 DEG C, adds 90 parts of chloromethanes, 90 parts of epoxy butanes, 30 parts of tripropyl silanols, is warming up to 60
DEG C reaction 5h after, discharging obtain fluid loss additive of oil-base drilling fluid.
Embodiment 9
Performance evaluation is carried out to embodiment 1-8 samples.
Diesel oil base drilling fluid is formulated：240mL diesel oil+6g organoclay+60mL 20%CaCl2Solution+12g primary emulsions+4g
Auxiliary emulsifying agent+12g fluid loss additives.
White oil base drilling fluid is formulated：240mL5# white oil+6g organoclay+60mL 20%CaCl2Solution+12g primary emulsions+
Auxiliary emulsifying agent+12g the fluid loss additives of 4g.
Synthetic base drilling fluid is formulated：240 mL LAO+6g organoclay+60mL 20%CaCl2Solution+12g primary emulsions+4g
Auxiliary emulsifying agent+12g fluid loss additives.
Performance of the fluid loss additive in these three drilling fluids is tested respectively, and test result is as follows：
It can be seen that from the data of table 1, table 2, table 3：Diesel oil base drilling fluid, white oil base drilling fluid, synthetic base drilling fluid add drop
Its API leak-off and high temperature and high pre ssure filtration after fluid loss agents, it is more much smaller than the drilling fluid without addition fluid loss agents, illustrate the present invention's
Fluid loss additive is notable in the filtrate reducing effect of oil base drilling fluid.
Claims (7)
1. a kind of oil base drilling fluid fluid loss additive, it is characterised in that count by weight, includes following component：
Purified cotton：60 parts, organic solvent：600 parts；NaOH solution：120 parts；Chloromethanes：30-90 parts；Epoxide：30-
90 parts；Silanol：30-100 parts.
2. oil base drilling fluid fluid loss additive according to claim 1, it is characterised in that described purified cotton be by carbon,
Hydrogen, 3 kinds of element compositions of oxygen, its mass ratio constituted:Carbon 44.4%%, hydrogen 6.17%, oxygen 49.39%, its chemical composition be cellulose,
Lignin and hemicellulose.
3. a kind of preparation method of oil base drilling fluid fluid loss additive according to claim 1, it is characterised in that comprising with
Lower step：Under nitrogen protection, NaOH solution, organic solvent, purified cotton are sequentially added into reactor, the alkali at 20-25 DEG C
Change 1h, add chloromethanes, epoxide, silanol, be warming up to after 50-80 DEG C of reaction 3-5h, press filtration discharging obtains oil base drilling well
Liquid fluid loss additive.
4. the preparation method of a kind of oil base drilling fluid fluid loss additive according to claim 3, it is characterised in that described
The concentration of NaOH solution is by mass percentage：45%-50%.
5. the preparation method of a kind of oil base drilling fluid fluid loss additive according to claim 3, it is characterised in that described
Organic solvent is one or more of mixtures in isopropanol, toluene, ethanol, acetone.
6. the preparation method of a kind of oil base drilling fluid fluid loss additive according to claim 3, it is characterised in that described
It is containing epoxide：One or more of mixing in epoxy butane, epoxypentane, oxepane.
7. the preparation method of a kind of oil base drilling fluid fluid loss additive according to claim 3, it is characterised in that described
Silanol is：One or more of mixing in trimethyl silanol, triethyl silanol, tripropyl silanol.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610231331.5A CN107298969B (en) | 2016-04-14 | 2016-04-14 | Filtrate reducer for oil-based drilling fluid and preparation method thereof |
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| CN201610231331.5A CN107298969B (en) | 2016-04-14 | 2016-04-14 | Filtrate reducer for oil-based drilling fluid and preparation method thereof |
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| Publication Number | Publication Date |
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| CN107298969A true CN107298969A (en) | 2017-10-27 |
| CN107298969B CN107298969B (en) | 2020-08-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109762536A (en) * | 2019-02-15 | 2019-05-17 | 北京启顺京腾科技有限责任公司 | A kind of New drilling fluid fluid loss additive and its synthetic method |
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|---|---|---|---|---|
| CN101484546A (en) * | 2006-07-07 | 2009-07-15 | M-I有限公司 | Fluid loss additive for oil-based muds |
| CN102796497A (en) * | 2012-09-07 | 2012-11-28 | 天津中海油服化学有限公司 | Gas oil base invert oil-emulsion drilling fluid and preparation method |
| CN102807624A (en) * | 2012-05-21 | 2012-12-05 | 新疆光大山河化工科技有限公司 | Preparation technology of hydroxypropyl methylcellulose ether (HPMC) |
| CN103087202A (en) * | 2012-12-20 | 2013-05-08 | 杭州弘博化工有限公司 | Preparation method of polyanionic cellulose with ultrahigh viscosity for water-based drilling fluid |
| CN104558207A (en) * | 2013-10-13 | 2015-04-29 | 吴桥双盛纤维素有限责任公司 | Production process of hydroxypropyl methyl cellulose |
| CN105384830A (en) * | 2015-12-14 | 2016-03-09 | 山东一滕新材料股份有限公司 | Hydroxypropyl hydroxyethyl cellulose ether and preparation method thereof |
-
2016
- 2016-04-14 CN CN201610231331.5A patent/CN107298969B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101484546A (en) * | 2006-07-07 | 2009-07-15 | M-I有限公司 | Fluid loss additive for oil-based muds |
| CN102807624A (en) * | 2012-05-21 | 2012-12-05 | 新疆光大山河化工科技有限公司 | Preparation technology of hydroxypropyl methylcellulose ether (HPMC) |
| CN102796497A (en) * | 2012-09-07 | 2012-11-28 | 天津中海油服化学有限公司 | Gas oil base invert oil-emulsion drilling fluid and preparation method |
| CN103087202A (en) * | 2012-12-20 | 2013-05-08 | 杭州弘博化工有限公司 | Preparation method of polyanionic cellulose with ultrahigh viscosity for water-based drilling fluid |
| CN104558207A (en) * | 2013-10-13 | 2015-04-29 | 吴桥双盛纤维素有限责任公司 | Production process of hydroxypropyl methyl cellulose |
| CN105384830A (en) * | 2015-12-14 | 2016-03-09 | 山东一滕新材料股份有限公司 | Hydroxypropyl hydroxyethyl cellulose ether and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109762536A (en) * | 2019-02-15 | 2019-05-17 | 北京启顺京腾科技有限责任公司 | A kind of New drilling fluid fluid loss additive and its synthetic method |
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| CN107298969B (en) | 2020-08-21 |
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Address after: Liuhe District of Nanjing City, Jiangsu province 210048 geguan Road No. 699 Patentee after: China Petroleum & Chemical Corp. Patentee after: SINOPEC NANJING CHEMICAL RESEARCH INSTITUTE Co.,Ltd. Address before: Liuhe District of Nanjing City, Jiangsu province 210048 geguan Road No. 699 Patentee before: China Petroleum & Chemical Corp. Patentee before: Nanhua Group Research Institute |
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